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Listed on a ransomware leak site

Tempel

tempel.com

Tempel was listed on the The Gentlemen and Cactus leak site on Mar 12, 2025. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
The Gentlemen, Cactus
First listed
Mar 12, 2025
Claims recorded
2

2 Leak-Site Claims.

The GentlemenConfirmed claim
Posted on the leak site
Aug 14, 2026
Collected by Brandefense
Aug 15, 2026
Data claimed
Not stated
Leak-site post text, written by the group
tempel.com zoominfo.com/c/tempel/87867666 Tempel Steel Company, a division of Worthington Steel, is a leading global manufacturer of high-precision electrical steel laminations. Established in 1945, the company provides essential components for motors, generators, and transformers used across the automotive, eMobility, and energy sectors. Their platform showcases advanced precision metal stamping and overmolding services designed to improve product performance and efficiency.
CactusConfirmed claim
Posted on the leak site
Mar 12, 2025
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Tempel is a leading manufacturer of high-precision magnetic steel laminations for the motors, transformers, and generators used in the automotive, industrial and energy markets, and beyond. Website: [removed] Revenue: $628.7M Address: 5500 N Wolcott Ave, Chicago, Illinois, 60640, United States Phone Number: [removed] Download link #1: [removed] Mirror: [removed] DATA DESCRIPTIONS: Personal identifiable information, confidential engineering data, drawings, customers' and partners' information, financial documents, corporate correspondence, database exports and backups, etc.

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Santa Barbara Endodontics
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The GentlemenUSUnited StatesHealthcareNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
GTL Concreto e Logística LTDA
gtlconcreto.com.br
EmperadorBRBrazilManufacturing2 GB
POWERsonic Industries Inc.AuroraCACanadaManufacturingNot stated
SMIC US Company (Sunnyvale, CA, US arm of Semiconductor Manufacturing International Corpo...
smics.com
N0nCNChinaManufacturingNot stated
Pergande
pergande.de
QilinDEGermanyManufacturingNot stated
ECO USA
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N0nUSUnited StatesManufacturingNot stated
Rheem Global
rheem.com
HelixUSUnited StatesManufacturing2.45 GB

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.